/*
 * Copyright (C) the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.derquinse.common.io;

import java.io.InputStream;

/**
 * An empty input stream.
 * @author Andres Rodriguez
 */
final class EmptyInputStream extends InputStream {
	/** Shared instance. */
	static final EmptyInputStream INSTANCE = new EmptyInputStream();
	/** Empty byte array. */
	static final byte[] EMPTY_ARRAY = new byte[0];

	/**
	 * Constructor.
	 */
	private EmptyInputStream() {
	}

	@Override
	public int read() {
		return -1;
	}
}